VTK
vtkPNGReader.h
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1 /*=========================================================================
2 
3  Program: Visualization Toolkit
4  Module: vtkPNGReader.h
5 
6  Copyright (c) Ken Martin, Will Schroeder, Bill Lorensen
7  All rights reserved.
8  See Copyright.txt or http://www.kitware.com/Copyright.htm for details.
9 
10  This software is distributed WITHOUT ANY WARRANTY; without even
11  the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
12  PURPOSE. See the above copyright notice for more information.
13 
14 =========================================================================*/
26 #ifndef vtkPNGReader_h
27 #define vtkPNGReader_h
28 
29 #include "vtkIOImageModule.h" // For export macro
30 #include "vtkImageReader2.h"
31 
32 class VTKIOIMAGE_EXPORT vtkPNGReader : public vtkImageReader2
33 {
34 public:
35  static vtkPNGReader *New();
37  void PrintSelf(ostream& os, vtkIndent indent) override;
38 
42  int CanReadFile(const char* fname) override;
43 
49  const char* GetFileExtensions() override
50  {
51  return ".png";
52  }
53 
57  const char* GetDescriptiveName() override
58  {
59  return "PNG";
60  }
61 
67  void GetTextChunks(const char* key, int beginEndIndex[2]);
71  const char* GetTextKey(int index);
77  const char* GetTextValue(int index);
82  size_t GetNumberOfTextChunks();
83 
85 
90  vtkSetMacro(ReadSpacingFromFile, bool);
91  vtkGetMacro(ReadSpacingFromFile, bool);
92  vtkBooleanMacro(ReadSpacingFromFile, bool);
94 protected:
95  vtkPNGReader();
96  ~vtkPNGReader() override;
97 
98  void ExecuteInformation() override;
99  void ExecuteDataWithInformation(vtkDataObject *out, vtkInformation *outInfo) override;
100  template <class OT>
101  void vtkPNGReaderUpdate(vtkImageData *data, OT *outPtr);
102  template <class OT>
103  void vtkPNGReaderUpdate2(
104  OT *outPtr, int *outExt, vtkIdType *outInc, long pixSize);
105 
106 
107 private:
108  vtkPNGReader(const vtkPNGReader&) = delete;
109  void operator=(const vtkPNGReader&) = delete;
110 
111  class vtkInternals;
112  vtkInternals* Internals;
113  bool ReadSpacingFromFile;
114 };
115 #endif
static vtkImageReader2 * New()
Store vtkAlgorithm input/output information.
int vtkIdType
Definition: vtkType.h:347
const char * GetFileExtensions() override
Get the file extensions for this format.
Definition: vtkPNGReader.h:49
void ExecuteDataWithInformation(vtkDataObject *data, vtkInformation *outInfo) override
This is a convenience method that is implemented in many subclasses instead of RequestData.
virtual int CanReadFile(const char *vtkNotUsed(fname))
Return non zero if the reader can read the given file name.
a simple class to control print indentation
Definition: vtkIndent.h:33
read PNG files
Definition: vtkPNGReader.h:32
topologically and geometrically regular array of data
Definition: vtkImageData.h:39
virtual void ExecuteInformation()
const char * GetDescriptiveName() override
Return a descriptive name for the file format that might be useful in a GUI.
Definition: vtkPNGReader.h:57
Superclass of binary file readers.
void PrintSelf(ostream &os, vtkIndent indent) override
Methods invoked by print to print information about the object including superclasses.
general representation of visualization data
Definition: vtkDataObject.h:58
Set of utilities for OpenTURNS<->VTK conversions.
Definition: vtkOTFilter.h:32